Host: The Japan Society of Mechanical Engineers
Name : The 30th International Conference on Nuclear Engineering (ICONE30)
Date : May 21, 2023 - May 26, 2023
District heating based on fossil energy is an important source of carbon emissions, and district heating of nuclear power plants is one of the ways to alleviate this problem. Since the 1960s to 1970s, international studies on nuclear energy for district heating have been conducted, and these studies have mainly focused on 2nd-generation nuclear power plants. At present, there are fewer units for district heating based on 3rd-generation passive nuclear power technology. In this paper, we analyze the impact of district heating on NSSS (Nuclear Steam Supply System) control system of passive nuclear power plants (AP1000 and CAP1400), including reactor control system, rapid power reduction, steam dump control system, and feedwater control system, taking Haiyang nuclear power plant and Shidaowan nuclear power plant for example. And the corresponding I&C modification schematic is given according to the analysis.
